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Finding the Fourth Proportional to 359,395.20, 495,959.22 and 198,265.68

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Solution

The fourth proportional to 359,395.20, 495,959.22 and 198,265.68 is: 273,603.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,395.20 : 495,959.22 = 198,265.68 : x
  2. Step 2: Convert to fraction form
    359,395.20/495,959.22 = 198,265.68/x
  3. Step 3: Cross multiply
    359,395.20x = 495,959.22 × 198,265.68
  4. Step 4: Simplify right side
    359,395.20x = 98,331,692,005.57
  5. Step 5: Solve for x
    x = 98,331,692,005.57/359,395.20
  6. Step 6: Final answer
    x = 273,603.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.